Back to Search Start Over

Lower Hybrid Oscillations in Multicomponent Space Plasmas Subjected to Ion Cyclotron Waves

Lower Hybrid Oscillations in Multicomponent Space Plasmas Subjected to Ion Cyclotron Waves

Authors :
Khazanov, G. V
Krivorutsky, E. N
Moore, T. E
Liemohn, M. W
Horwitz, J. L
Source :
Journal of Geophysical Research. 102(A1)
Publication Year :
1997
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1997.

Abstract

It is found that in multicomponent plasmas subjected to Alfven or fast magnetosonic waves, such as are observed in regions of the outer plasmasphere and ring current-plasmapause overlap, lower hybrid oscillations are generated. The addition of a minor heavy ion component to a proton-electron plasma significantly lowers the low-frequency electric wave amplitude needed for lower hybrid wave excitation. It is found that the lower hybrid wave energy density level is determined by the nonlinear process of induced scattering by ions and electrons; hydrogen ions in the region of resonant velocities are accelerated; and nonresonant particles are weakly heated due to the induced scattering. For a given example, the light resonant ions have an energy gain factor of 20, leading to the development of a high-energy tail in the H(+) distribution function due to low-frequency waves.

Subjects

Subjects :
Plasma Physics

Details

Language :
English
ISSN :
01480227
Volume :
102
Issue :
A1
Database :
NASA Technical Reports
Journal :
Journal of Geophysical Research
Notes :
NSF ATM-95-23699, , UPN-432-20-00, , NGT-51335
Publication Type :
Report
Accession number :
edsnas.19970022140
Document Type :
Report
Full Text :
https://doi.org/10.1029/96JA02321